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SubjectRe: [PATCH v3 3/3] blk-crypto: show crypto capabilities in sysfs
On 12/11/21 02:50, Greg Kroah-Hartman wrote:
> On Fri, Dec 10, 2021 at 09:29:41AM -0800, Bart Van Assche wrote:
>> (b) No other block layer sysfs attribute follows this encoding scheme.
> Then follow what they do. Do they have multiple values in a single
> file? If so, they are broken and we should change that.

Hi Greg,

The only other block layer sysfs attribute I know of that reports
multiple values is the queue/scheduler attribute. Here is an example of
the output that can be produced by reading that attribute:

# cat /sys/block/sda/queue/scheduler
[mq-deadline] kyber bfq none

I don't think that changing the behavior of that attribute is an option
because that would break existing user space software, e.g. the test suite.



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